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13.A regression analysis between sales (Y in $1000) and advertising (X in dollars) resulted in the...

13.A regression analysis between sales (Y in $1000) and advertising (X in dollars) resulted in the following equation

Y = 25,000 + 3 X

A-The above equation implies that ana.increase of $4 in advertising is associated with an increase of $4,000 in sales

b.increase of $1 in advertising is associated with an increase of $4 in sales

c.increase of $1 in advertising is associated with an increase of $34,000 in sales

d.increase of $1 in advertising is associated with an increase of $4,000 in sales

Math   Statistics-And-Probability   
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